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Inclined Planes And Levers
Test Description: Simple machines quiz
Instructions: Answer all questions to get your test result.
1) 1. Which of the following statements is correct from Lab #3 on Inclined Planes?
A
The longest inclined plane was the most efficient because the force was spread out over a longer distance.
B
The shortest inclined plane was the most efficient because the force was spread out over a shorter distance.
C
The length of the inclined plane does not affect the force.
2) What is the purpose of using a simple machine?
A
To reduce energy needed to complete a task
B
To reduce work needed to complete a task
C
To reduce force needed to complete a task
3) Most machines are 100% efficient. a. True
A
false
B
true
4) 4. Which of the following is NOT an inclined plane?
A
nail
B
stairs
C
bolt
D
shovel
5) 5. The ___________ is the pivot point of a lever. It can be moved to different locations along the lever.
A
resistance
B
fulcrum
C
inclined Plane
D
effort
6) The ability to do work is called __________________. Your evidence of this is movement or change.
A
energy
B
resistance
C
force
D
effort
7) A baseball bat in one example of a lever
A
true
B
false
8) Which of the following statements is true about Lab #4 on Levers?
A
The medium length lever was the most efficient because it took an equal amount of force to lift an equal amount of weight.
B
The longest lever was the most efficient because it took the least amount of force to lift the weight.
C
The shortest lever was the most efficient because it took the most force to lift the weight.
9) Which tool is used to measure force?
A
anemometer
B
newton
C
wedge
D
spring scale
10) The placement of the fulcrum on a lever will not affect its efficiency when lifting a weight.
A
True
B
false
*select an answer for all questions
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